Eduardo Casarero ecasarero@gmail.com writes:

2011/12/2 Patrick Westenberg pw@wk-serv.de

...

Hi there,

is anyone using munin to monitor connections to dovecot? If someone does, which plugin is used?

I'm using the one from nagiosexchange, but I modified it for dovecot2:

#!/bin/sh # # Munin Plugin # to count logins to your dovecot mailserver # # Created by Dominik Schulz lkml@ds.gauner.org # http://developer.gauner.org/munin/ # Contributions by: # - Stephane Enten tuf@delyth.net # - Micah Anderson micah@riseup.net (updated for dovecot2) # # Parameters understood: # # config (required) # autoconf (optional - used by munin-config) # # Config variables: # # logfile - Where to find the syslog file # # Add the following line to a file in /etc/munin/plugin-conf.d: # env.logfile /var/log/your/logfile.log # # Magic markers (optional - used by munin-config and installation scripts): # #%# family=auto #%# capabilities=autoconf

###################### # Configuration ###################### STAT_FILE=/var/lib/munin/plugin-state/plugin-dovecot.state EXPR_BIN=/usr/bin/expr LOGFILE=${logfile:-/var/log/mail.log} ######################

if [ "$1" = "autoconf" ]; then echo yes exit 0 fi

if [ "$1" = "config" ]; then echo 'graph_title Dovcecot Logins' echo 'graph_args --base 1000 -l 0' echo 'graph_vlabel Login Counters' echo 'login_total.label Total Logins' echo 'login_tls.label TLS Logins' echo 'login_ssl.label SSL Logins' echo 'login_imap.label IMAP Logins' echo 'login_pop3.label POP3 Logins' echo 'connected.label Connected Users' exit 0 fi

############################# # Initialization ############################# if [ ! -r $STAT_FILE ]; then echo "TOTAL=0" > $STAT_FILE echo "TLS=0" >> $STAT_FILE echo "SSL=0" >> $STAT_FILE echo "IMAP=0" >> $STAT_FILE echo "POP3=0" >> $STAT_FILE fi #############################

###################### # Total Logins ###################### /bin/echo -en "login_total.value " NEW_TOTAL=$(egrep 'dovecot.*Login' $LOGFILE | grep "date '+%b %e'" | sort | wc -l) OLD_TOTAL=$(grep TOTAL $STAT_FILE | cut -f2 -d '=') TOTAL=$($EXPR_BIN $NEW_TOTAL - $OLD_TOTAL) if [ $TOTAL -gt 0 ]; then echo "$TOTAL" else echo "0" fi echo -n ###################### # Connected Users ###################### CONNECTS=$(doveadm -f flow who -1 |wc -l) /bin/echo -en "connected.value " echo $CONNECTS echo -n ###################### # TLS Logins ###################### /bin/echo -en "login_tls.value " NEW_TLS=$(egrep 'dovecot.*Login.*TLS' $LOGFILE | grep "date '+%b %e'" | sort | wc -l) OLD_TLS=$(grep TLS $STAT_FILE | cut -f2 -d '=') TLS=$($EXPR_BIN $NEW_TLS - $OLD_TLS) if [ $TLS -gt 0 ]; then echo "$TLS" else echo "0" fi echo -n ###################### # SSL Logins ###################### /bin/echo -en "login_ssl.value " NEW_SSL=$(egrep 'dovecot.*Login.*SSL' $LOGFILE | grep "date '+%b %e'" | sort | wc -l) OLD_SSL=$(grep SSL $STAT_FILE | cut -f2 -d '=') SSL=$($EXPR_BIN $NEW_SSL - $OLD_SSL) if [ $SSL -gt 0 ]; then echo "$SSL" else echo "0" fi echo -n ###################### # IMAP Logins ###################### /bin/echo -en "login_imap.value " NEW_IMAP=$(egrep 'dovecot.*imap.*Login' $LOGFILE | grep "date '+%b %e'" | sort | wc -l) OLD_IMAP=$(grep IMAP $STAT_FILE | cut -f2 -d '=') IMAP=$($EXPR_BIN $NEW_IMAP - $OLD_IMAP) if [ $IMAP -gt 0 ]; then echo "$IMAP" else echo "0" fi echo -n ###################### # POP3 Logins ###################### /bin/echo -en "login_pop3.value " NEW_POP3=$(egrep 'dovecot.*pop3.*Login' $LOGFILE | grep "date '+%b %e'" | sort | wc -l) OLD_POP3=$(grep POP3 $STAT_FILE | cut -f2 -d '=') POP3=$($EXPR_BIN $NEW_POP3 - $OLD_POP3) if [ $POP3 -gt 0 ]; then echo "$POP3" else echo "0" fi echo -n ###################### # Save the new values ###################### echo "TOTAL=$NEW_TOTAL" > $STAT_FILE echo "TLS=$NEW_TLS" >> $STAT_FILE echo "SSL=$NEW_SSL" >> $STAT_FILE echo "IMAP=$NEW_IMAP" >> $STAT_FILE echo "POP3=$NEW_POP3" >> $STAT_FILE